Spark-arrester.



. W. R. HALL.

SPARK ARRBSTER.

APPLIQATION FILED 111111.15. 1911.

1,016,069. Patented 13.11.30, 1912.

43 [.WENTo/e Alfomeyr 'cir ati

WILLIAM R. HALL, F WARNER, NEW HAMPSHIRE.

SPARK-ARRESTER.

Speccation of Letters Patent.

Application led March 15, 1911.

Patented Jan. 30,1912. Serial No. 614,592.

To ZZ I107mmit mf/,g/ concern Be it known that I, VILLIAM R. HALL, acitizen ot' the United States, residing at llvarner, in the county ofMerrimack and L@tate of New-Hampshire, have invented certain new anduseful Improvements in Spark-Arresters, of which the following is aspecification.

The present invention consists of a comparativcly simple form of sparkarresting' device, designed particularly to be placed in stove pipes toeliminate likelihood of passage of live-sparks from a chimney.

The invention involves improvedmeans for securing the spark arrester inplace in the stove pipe, a special fornrof agitator or lcnocker, andpeculiar means whereby the device may be placed in position and foroperating said agitator.

F or a full understanding of the presentinvention, reference is to behad to lthe following description and to the accompan ving drawings, inwhich- Figure ly is a perspective view of the device embodying theinvention; Fig. 2 is a horizontal sectional view taken through thespindle supporting the baille; Fig. 3 is a fragmentary end view of oneof the journal members of the agitatorl looking at the outer end of thesame; lP et is a-fragmentary View of the spindle and handle therefor;Vig. 5 is a fragmentary view of one of the hangers supporting thebatlie.

'lhroughout the following detail description and on the several figuresof the drawings, similar parts are referredto by like referencecharacters.

Specifically describing the invention, 1 denotes a conical battle offoraminous material adapted to be arranged in a` stove pipe with thepointed end downward and serving to etl'ectively prevent likelihood ofpassage of live sparks from the pipe out of the chimney, or the like,with the usual resultant advantages.

The balile 1 is adapted to be positioned in a stove pipeby au expansibleband 2 se cured to the upper end thereof, said band being split andformed with the terminals 2 connected by a screw 3 having thereon nuts 3to engage and separate the terminals 2. Projecting upwardly from theband 2 are the spaced hangers t and 5, the latter being apertured attheir upper ends. A knoeker or agitator G is arranged. nearthe upper endof the balile l and consists of a 'to dislodge soot or other, foreignmatter which may adhere to the baflie and interfere i with a good draftin the stove pipe.

The agitator comprises a frame suspended from a spindle 11 by means ofcentrallyr bored journal members 8 and 9- in spaced relation. Thespindle 11 passes through the journal members 8 and 9, the member 8being composed of the end semi-circular vertical web portions 8 and thecentral similar portion 8 opposite the portion 8. The journal member 9is elongated but of a form similar to the member 8, and provided with a.longitudinal passage 9," spanned by the vertical central web 9intermediate t-he ends of said member. The outer end of the journalmember 9 is provided With an aperture through which the spindle passes,sait' aperture havingrecesses 10 extending from opposite sides thereof,and the web 9 being provided with a similar recess, the said recessescoinciding with other recesses 4 provided at opposite sides of theaperture of the adjacent hanger 4. On the l1 are the oppositelyextending lugs 11 adapted by turningl the spindle to be placed inregister with the recesses 10 and t". At one end the spindlell hasahandle 12 and enlargement 13. The enlargement 13 is movable in a tubularbushing 14 which incloses a spring 15, lsaid spring being' inter posedbetween the linner end of the bushing and the enlargement 13.

The operation of the invention is as follows: To apply the device to astove pipe, it is only necessary to forni-openings in opposite sides ofthe latter, and by separating the sections of the pipe at a joint, placethe battle 1 in the pipe. The batlie is positioned properly b vexpanding the band 2 by operating the` nuts on the screw 3.v Theapertures in the hangers 4 and 5 and those in the journal members S and9 are registered with the openings in the pipe and the spindle 11 isthen passed therethrough, it being necessary to turn said spindle sothat the lugs 11v register with the horizontal recesses 4. and 10 ofthey Since the enlargement 13 abuts with the spindle parts 4 and 9respectively.`

spring 15, to lock the spindle with respect to the agitator it isnecessary to exert pressure inwardly on the handle luntil the lugs 11,arranged horizontally, pass beyond the 'web 9. whereupon the handle 12is turnedto dispose the lugs vertically, and the handle may ing theinterlocking means 1n operative rethen be released. When the handle 12is relation to the knocker and spindle and acilir leased, the spring 15will force thespindle 1 tating detachment 'of the Ispindle from theoutwardly moving the lugs along the side of knocker. y

5 the web 9', as shown in Figs. l and 2, said 3. ln a spark arrester,thecombination of lugs being adapted to abut With the Web a baille, aspindle associated with said bane, under such conditions to therebyenable the an agitator coaoting with the baille an agitator 6 to bemoved back and Jfort-h by comprising journal members mounted on turningthe handle 12 in a similar manner. said spindle, and means on thespindle i Q The Spindle l1 can not be accidentally readapted tointerlock with a journal of the 50 15 it can be removed.

said spindle and coperating With the baffle,

2. In a spark arrester, the combination of moved, `furthermore, becausethe parts 9 agitator for causing simultaneous movei ent and 11 form alock necessitating peculiar of said spindle and agitator, and springmanipulation of the spindle, namelythat it means coacting With thespindle to normally be forced inward and then turned 90 before hold thesame in a position preventing accif dental detachment from the journalmember 6,5

with which it interlocks.

1. ln a spark arrester, the combination of a baille of conical form, apair of hangers secured to the larger end et the battle, an agi tatorcoacting with the baille and comprising ,50

journal members, the journal members and hangers having apertures inalinement, a

spindle passing through said apertures an formed with an interlockinglug., one ot the journal members and hangers having recesses leadingfrom their apertures and through which the lng is adapt-ed to be moved,a handle for turning the spindle to cause the lug thereof to be thrownout of register with the recesses aoresaid,the joury() nal member lastmentioned having a portion adapted to abut with said lug to causesimultaneous movement of the spindle and agita tor.

In testimony whereof l aiiix my signature in presence of two witnesses.

WLLAM lt. HALL.

Having thus described the invention, what vis claimed as new is:

1. In a spark arrester, the combination of a baille, a spindle, aknocker suspended from journal members supporting the knoel er on thespindle, and means on the spindle arranged to interlock with and engageone of the journal members on the knocker, 25v whereby the latter isrendered operable by the spindle, the journal member having-recessespermitting longitudinal movement of the spindle to disengage the samefrom the knocker.

a hollow baflie having an open end portion, a

spindle supported by said baille, a knocker comprising members throughwhich said spindle passes, said'lmocker comprising a 35 ball or Weightmovable back and forth into and out of engagement with the walls of thebaille, the spindlehaving means for inter-- locking it with respect tothe knocker where- Witnesses:

by the knocker may be operated by the spin- .-annnnw J. Hoon,

-10 dle, and resilient means for normally holdl Fannie HALL.

